avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    21.390      0.000    995.030  12713.770      0.000     69.820 
avg	     0.155      0.000      7.210     92.129      0.000      0.506 
stddev	     0.057      0.000      1.575      3.863      0.000      4.051 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1770711.320     57.000  17774.930    228.000 7214602.770 114574.580  19929.000 157829.950   1195.100  13791.810 
avg	     0.000  12831.241      0.413    128.804      1.652  52279.730    830.251    144.413   1143.695      8.660     99.941 
stddev	     0.000   5656.612      0.507     40.520      2.028  15818.670    162.734     14.333    242.032      3.264      0.694